Thread: Triming a float number

Yes, multiply by 10 to the power of number of decimal places required. Truncate all decimal places and divide by 10 to the power of number of dp.
Voila

QuantumPete

There are a few ways, but perhaps the "easiest" is just move the decimal place -- then move it back.

Code:

#include <stdio.h>

int main(void)
{
   double number = 4.32525676;

   double other = number * 10;   // 43.25...
   other *= 10;                  // 432.52...
   other *= 10;                  // 4325.256...

   other = (float)((int)other);
   other /= 10 * 10 * 10;
   printf("original = &#37;f. Chopped = %f", number, other);
   return 0;
}

Not sure how happy I'd be using that (even though I just wrote it)-- of course you should chuck it in a function if you plan to use it.

The alternative is, rounding or printing to a certain precision.